baber/WOPTO huggingface dataset:
Patent GB-1296862-A (GB)
IPC: C07D519/00
Filed: 1969-12-08
Abstract: 1296862 Photoconductive element INTERNATIONAL BUSINESS MACHINES CORP 8 Dec 1969 [23 Dec 1968] 59767/69 Heading H1K [Also in Division C2] A photoconductive element comprises a photoconductive compound of formula wherein A is X is CH = N, N = CH N = N, CH = CH-CH = N or N = CH-CH = CH, R is hydrogen, nitro, dialkyl amino or dialkyl aminophenylazo and alkyl is methyl or ethyl. The compound is preferably dichroic and may be used in a contact reflex reproduction process as described in Specification 1,244,765. The compound may be applied as an organic solvent solution to a substrate of glass, paper, plastic, aluminium or cellulose acetate coated with aluminium. A resin binder may be used if desired and a coating of polyvinyl carbazole, 1,3-dinitronaphthalene and polymers of esters of acrylic and methacrylic acids applied to the photoconductive coating. In the specific embodiments R is H, NO 2 , dimethylamino, julolidinidene and dimethylaminophenylazo.
Patent GB-1297085-A (GB)
IPC: D21H17/11
Filed: 1970-07-17
Abstract: 1297085 Cellulose phosphate derivatives AIR PRODUCTS & CHEMICALS Inc 17 July 1970 [23 July 1969 20 May 1970] 34687/70 Heading C3A [Also in Divisions C2 and D1] Cotton is rendered oil and grease resistant by chemically modifying it by reaction with a compound of formula (C 6 F 11 CH 2 O) 2 P(O)(OH), or (C 6 F 11 CH 2 O) 2 P(O)Cl or (C 6 F 11 CH 2 O)P(O)Cl 2 , and subsequently curing with urea to form cellulose phosphates.
Patent GB-1297647-A (GB)
IPC: F16K5/06
Filed: 1969-10-17
Abstract: 1297647 Valves; seals WORCESTER VALVE CO Ltd 14 Jan 1971 [17 Oct 1969] 51206/69 Headings F2B and F2V A seat seal for a rotary floating ball valve is a moulded plastics or rubber relatively elastic annulus, e.g. of P.T.F.E. having a radially inwardly projecting lip 23 with convergent surfaces 24B, 20, the surface 20 being spherical to conform with the ball. The annulus is reinforced to resist circumferential stretch but to allow toroidal rotational deflections. The reinforcement may be continuous steel wires 27, continuous rings or a helix of carbon fibre, woven or lattice mesh of fibres, or a random distribution of carbon or glass fibres or metal particles. The distribution.in the latter case is such that the concentration of fibres or particles becomes greater in a radial outward direction. Carbon fibres may be exposed in surface 20 for lubrication purposes. A frusto-conical annular groove (30) may extend inwardly from the surface 24 and an annular groove (38) may extend radially inwards from the surface 25 adjacent the surface 21. A similar seal may be used to seal the valve actuating spindle. The seal may also be used in articulated pipe joints.
Patent GB-1301739-A (GB)
IPC: B01J31/24
Filed: 1970-07-06
Abstract: 1301739 Ruthenium (II) carboxylates and adducts thereof JOHNSON MATTHEY & CO Ltd 6 July 1970 [14 July 1969] 32541/70 [Headings C2C C2J and C2P] The invention comprises ruthenium (II) carboxylates of the formula where R is an optionally substituted alkyl or aryl radical, and their adducts with a stabilizing donor ligand such as a trisubstituted phosphine, arsine or stibine or a nitrogen-containing base such as pyridine, quinoline, pyrrole and diphenylamine and triethylamine. The salts are prepared by heating together a soluble ruthenium salt, e.g. the chloride with the appropriate alkali metal carboxylate and the appropriate carboxylic acid. Other stabilizing donor ligands specified include an alkyl phosphine, ethyl diphenyl phosphine, triphenyl phosphite, triphenyl arsine and ethyldiphenyl stibine.
Patent GB-1302150-A (GB)
IPC: H01J29/07
Filed: 1971-09-21
Abstract: 1302150 Colour cathode-ray tubes HITACHI Ltd 21 Sept 1971 44000/71 Heading H1D A shadow mask assembly for use in a colour television tube comprises a frame 17, a shadow mask 16 supported by said frame, a bimetallic element 61 comprising an upper side 63 secured to said frame and a lower side 64 secured to a leaf spring 18 and a flat step 62 between said upper and lower sides, the height of the step gradually varying from one end to the other. The part of the bimetallic element having the lower coefficient of expansion is adjacent the frame 17 and the arrangement is such as to maintain the alignment of the mask when it becomes heated.
Patent GB-1307681-A (GB)
Title: Calculating machines
IPC: G06F15/02
Filed: 1969-10-21
Abstract: 1307681 Audible output BELL PUNCH CO Ltd 10 Aug 1970 [21 Oct 1969] 51458/69 Headings G4A and G4H A desk top calculating machine which may be of the type described in Specifications 1,042,785 or 1,196,175 is provided with a means for giving an audible indication of the number stored in the answer register. A disc 5 has the numbers 0-9 and the words "minus" and "point" recorded magnetically on respective radially spaced tracks which are scanned by corresponding fixed transducers. The result of a calculation is circulated through the answer register one stage of which is a read stage. As the digits of the number pass through the read stage the appropriate transducer heads are selected and the resulting signals are relayed to a speaker or a headset via a cable or radio link. The number of digits passing through the read stage are counted to ensure that the number in the register is read only once.
Patent GB-1310015-A (GB)
Title: Lathes having shaft supports
IPC: B23B17/00
Filed: 1969-05-27
Abstract: 1310015 Supporting feed shafts COLCHESTER LATHE CO Ltd 18 May 1970 [27 May 1969] 26750/69 Headings B3B and B3T In a lathe having a bed and a carriage, means is provided to prevent sag or whip of the feed shafts and lead screw during operation which comprises a supporting assembly comprising a support beam 11 mountable on the lathe bed 1 and at least two spaced apart support brackets 9, 10 slidably mounted on the beam and supporting one or more shafts 5, 6, and 7. A rod 15 connects the bracket and has thereon stops 16 and 17 which are arranged to engage a stop plate 18 secured to the carriage 4. The support brackets are movable by the carriage over part of its travel along the bed so as to always provide support for the shafts within their largest span remote from the carriage.
Patent GB-1313111-A (GB)
Title: Reversible ploughs
IPC: A01B3/421
Filed: 1969-12-20
Abstract: 1313111 Reversible plough locking means HARRISON McGREGGOR & GUEST Ltd 15 Dec 1970 [20 Dec 1969] 62169/69 Heading A1B In a reversible plough in which a tool-carrying shaft 10 can rotate within sleeve 11 between two working positions, moved by an actuator, an over-centre device is employed to lock the tools in each position and is moved out of engagement with the tools by an unlocking mechanism. Two members 25, 26 are bolted to sleeve 11 and support a horizontal axis 37 about which plates 38, 39 can pivot. A rod 41 connects these plates with one end of strut 43, and, in each working position, is spring-urged into recesses 42, the strut being held overcentre by a helical compression spring (not shown) confined between members 25, 26 and the plates 38, 39; thus preventing rotation of shaft 10, to which the strut is universally joined at 49. A double-acting hydraulic piston- and-cylinder assembly 53 has its piston 52 fixed to the sleeve 11 at 54. When the cylinder moves downwardly from the position shown, a cam 56 attached to the cylinder pushes rod 41 out of the recesses 42. A rotary hydraulic actuator 12 is then free to rotate the shaft 10 to the next working position; the rod being urged back into the recesses to lock it. To reverse the process the cylinder moves up the piston, unlocks the shaft, and returns to the position shown.
Patent GB-1315442-A (GB)
Title: Tachometers
IPC: G01P3/48
Filed: 1971-01-20
Abstract: 1315442 Measuring angular speed electrically RICARDO & CO ENGS (1927) Ltd and I B HOPLEY 20 Jan 1972 [20 Jan 1971] 2726/71 Heading G1N Apparatus for measuring the angular speed of a shaft 12 (Figs.1,2) comprises a disc 10 consisting of alternate segments of magnetic and non- magnetic material, mounted for rotation on the shaft between a magnet 13 and a changeover reed switch 14, whereby the switch is changed over six times ( as shown) in each cycle, causing a capacitor 15 (Fig. 3) to be alternately charged from a DC source 18 and discharged through a meter 25. The average current through the meter is proportional to the switching rate and therefore indicative of the angular speed of the shaft 12. In an alternative arrangement the disc 10 and stationary magnet 13 are replaced by a rotating permanent magnet mounted on shaft 12,
Patent GB-1317426-A (GB)
Title: Terminals for insulated electric conductors
IPC: H01R4/24
Filed: 1971-01-12
Abstract: 1317426 Terminals RELIABLE ELECTRIC CO 12 Jan 1971 1371/71 Heading H2E A two wire clip-type terminal comprises a flat body 10 of resilient metal having notches 11  and slots 13, the single equivalent or "effective" width of each end arm 14, 16 being less than (e.g. less than 70%) the single "effective" width of the centre arm 15 to render each end arm more compliant than arm 15 when a conductor is inserted into one of the slots. The terminal may include a lateral extension 21 for facilitating entry of a wire, apertures 12, and a base portion comprising a tab 24 for securing the terminal to a holder as by wedging and a soldering or wirewrapping connection 23. Slots 13 are formed by a shearing or slitting operation after which portions are prestressed at 17 to force the end arms 14, 16 away from centre arm 15. The resiliency of each end arm is preferably in excess of twice that of the centre arm. Ninety degree corner edges 19 penetrate and slice the insulation from a wire inserted into a slot 13 the width of each slot being less than the diameter of the conductive part of the wire. A locating boss 30 may be included on the terminal, the boss engaging with a slot 33 in either surface of any insertion tool 27 which fits over parallel arm edges 29 and engages the wires placed in notches 11. The wires can then be forced downwards into slots 13 by applying pressure to the tool. Slots 13 may be provided with a V-shaped entry instead of a rounded entry as shown. The tool also limits the deflection of end arms 14, 16 with respect to the centre arm, to within their elastic limits.
Patent GB-1326019-A (GB)
Title: Method of manufacturing ferrite magnets
IPC: H01F1/11
Filed: 1969-12-31
Abstract: 1326019 Spray drying of ferrite particles JOSEPH LUCAS (INDUSTRIES) Ltd 9 Dec 1970 [31 Dec 1969] 63411/69 Heading B1B Also in Division H1] A spray-drying apparatus comprises a chamber provided with feed inlet, a hot air inlet, product outlet and contains an air turbine rotor 13. In operation, an aqueous slurry of solid particles, fed in at 11 is dispersed into droplets by the rapidly spinning rotor. The droplets are evaporated by a counterflow of air at e.g. 250‹C so that free-flowing solid exits at 14. The apparatus is used to dry an aqueous slurry of ferrite particles on the manufacture of permanent magnets (see Division H1).
Patent GB-1328184-A (GB)
Title: Flexible jewellery bands
IPC: A44C5/00
Filed: 1972-01-26
Abstract: 1328184 Flexible band R BRAJER & CO Ltd 26 Jan 1972 3653/72 Heading A3H [Also in Division B3] A flexible band comprises two parallel chains 1, 2 interconnected by flat plates 3. Both chains lie on the same side of the plane of plates 3. The band is provided with fastening and locking means at its ends. When used as a necklace the chains are in the form of concentric circles and the plates 3 are trapezoidal with parallel sides joined to the chains. The band is produced in a jig with three parallel channels, chains 1, 2 being placed in the outer grooves so as to form pairs of opposite links, one link of each pair then being joined to the one opposite it by a plate 3, placed in the central channel.
Patent GB-1328691-A (GB)
Title: Apparatus for filling multiple cavity containers with measured  charges of liquids
IPC: B65B3/32
Filed: 1970-06-22
Abstract: 1328691 Filling containers with liquids GENERAL MILLS FUN GROUP Inc 22 June 1970 30222/70 Heading B8C [Also in Division F1] Pockets 23 in trays 21 are filled with liquid by intermittently advancing the trays on a conveyer 20 beneath intermittently operable pumping mechanisms 54 and 102 which have outlet nozzles 70 aligned with longitudinal rows of pockets to be filled. The conveyer and the pumping mechanisms are powered by a motor M and, in accordance with the setting of clutches 36, 50 and 109, the conveyer is advanced through single increments by an eight slot Geneva mechanism 24 or through double increments by a four slot Geneva mechanism 25. In the latter case, both pumping mechanism 25. In the latter cases, both pumping mechanisms 54 and 102 deposit charges during the conveyer pauses, and in the former case, only the pump mechanism 54 operates during the conveyer pauses. The apparatus is so arranged that when both pump mechanisms are operating, they deposit their charges into different transverse rows of pockets. The nozzles 70 of each pumping mechanism are fed from separate reservoirs 67a to 67f so that the pockets in any one row are filled with different liquids. Charges of liquid are passed through each nozzle by the reciprocating action of a plunger 64 in a cylinder 61. During withdrawal of the plunger 64, a groove 71 in the plunger is aligned with an inlet to the cylinder from the reservoir so that liquid is drawn into the cylinder. The plunger is rotated before it is forced back into the cylinder so that a groove 72 is aligned with the nozzle to eject the charge through the nozzle. The plungers are reciprocated by rotary cams 77 which, through followers carried by a member 79, rock members 84 and thence, via links 86, reciprocate slides which are engaged by the rear ends of the plungers. Further cams 76 act via slides and pin and inclined slot mechanisms, Fig. 5 (not shown), to reciprocate transverse slides 98. The transverse slides act through pins 100 to rotate the plungers. The liquid to be charged into the pockets may be paint, foodstuff, cosmetics, drugs or a solvent.
Patent GB-1330701-A (GB)
Title: Pesticidal compositions
IPC: A01N31/04
Filed: 1970-04-21
Abstract: 1330701 Combating weeds with mixed herbicides LENNIG CHEMICALS Ltd 20 April 1971 [21 April 1970] 18938/70 Heading ASE A method of inhibiting the growth of weeds comprises the application before emergence of the weeds of (A) a mixture of diuron and N-(1, 1-dimethylpropynyl)-3, 5-dichlorobenzamide to an area yielding rape as a crop or, (B) a mixture of simazine and said benzamide to (i) orchards, (ii) an area yielding a soft fruit crop or (iii) parks and gardens containing herbaceous plants.
Patent GB-1333561-A (GB)
Title: Rotors of disc brakes
IPC: F16D13/72
Filed: 1970-01-13
Abstract: 1333561 Mounting brake discs on shafts; brake discs GIRLING Ltd 11 Jan 1971 [13 Jan 1970] 1514/70 Headings F2E and F2U An annular rotor 12 for a disc broke (e.g. with braking surfaces 14 and vanes 15 for air cooling) is connected (e.g. by bolts 19) at spaced locations 18 to a hollow part 16 (e.g. of top hat shape having holes 17 for attachment to a shaft) arranged between the locations (e.g. by having axially extending flutes 20 or ribs) to flex so that the locations can move apart due to thermal expansion of the rotor 12.
Patent GB-1335966-A (GB)
Title: Toothed belts
IPC: F16G1/28
Filed: 1971-04-29
Abstract: 1335966 Belt gearing DUNLOP HOLDINGS Ltd 29 April 1971 [2 May 1970] 21194/70 Heading F2Q A toothed belt comprises a continuous strip of elastomeric material having embedded therein at least one wire cord extending longitudinally with respect to the belt and comprising at least one bunch of fine gauge substantially parallel metal filaments. In forming a doubled wire cord comprising two strands 1, 2, Fig. 1, each bunch of substantially parallel metal filaments 3 is twisted in a similar sense about its own axis, and the strands 1, 2 are twisted together in an opposite sense. In a method of making a toothed belt, a sheet of rubber 12, Fig. 3, and a sheet of nylon fabric 13 are passed through the nip between a plain pressure roll 10 and a grooved roll 11 together with a strip of neoprene sheet 12. The pressure roll 10 is heated by a heater 16 and a sheet of release film 17 separates the neoprene sheet 12 from the roll 10. The nylon fabric 13 and neoprene compound 12 are pressed together, the nylon fabric being stretched to cover the profile of the teeth formed in the neoprene compound. The preformed sheet 19 is then cut into lengths each of which is fitted around a mould and the ends joined together. Brass plated steel wire cords having a three stranded construction are applied in sections across the width of the mould. A coating of flexible neoprene cement is then applied to the wires and the exposed surfaces of the composite strip. The belt assembly is then vulcanized and cut into individual belts.
Patent GB-1339268-A (GB)
Title: Polymerisation of vinyl aromatic compounds
IPC: C08F12/04
Filed: 1971-12-10
Abstract: 1339268 Polymerization of styrenes INTERNATIONAL SYNTHETIC RUBBER CO Ltd 10 Dec 1971 [10 Dec 1970] 58757/70 Heading C3P Styrene or hydrocarbyl substituted styrene monomer is polymerized in the form of a hydrocarbon effluent from a dehydrogenation reaction containing at least 5% by weight of the monomer in the presence of a metal of Group I A  of the Periodic Table or a hydride or hydrocarbyl thereof as catalyst wherein at least 50% of the heat of polymerization is retained in the reaction mixture whereby the temperature of the mixture is caused to rise and is in excess of 100‹ C. for at least part of the reaction, the product at the end of reaction being at a temperature of 100‹ C. or more. The reaction may be performed under substantially adiabatic conditions preferably for less than 1 hour. The process may be continuous and carried out in one or more thermally insulated tube reactors. The example describes the continuous polymerization of styrene, as an effluent from an ethyl benzene dehydrogenation, using lithium butyl.
Patent GB-1344877-A (GB)
Title: Electrically operated pumps and compressors
IPC: F04B35/04
Filed: 1971-04-19
Abstract: 1344877 Electric motors JEUMONTSCHNEIDER 19 April 1971 [15 April 1970] 25948/71 Heading H2A [Also in Division F1] An electrically operated pump or compressor comprises a plurality of spaced field coils 1 connected to the phases of a polyphase A.C. supply thereby to reciprocate a magnetic steel armature 6A carrying pumping pistons 18. When the pistons 18 reach the ends of their strokes they operate limit switches 11 which initiate by way of a logic circuit (not described) a change in the phase fed to the field coils. The pistons 18 vary the volume of valve pumping chambers A 1 , B 1  and chambers A, B containing a cooling fluid. The chambers A, B are in communication through bores 20, 21 in the armature and an annular space between the armature and the coils 1. The pistons 18, and consequently the cooling fluid, may be omitted if the armature 6A is made a sliding fit in annular members 22 disposed at the ends of the coils.
Patent GB-1348251-A (GB)
Title: Illuminated advertising device
IPC: G09F13/26
Filed: 1971-03-18
Abstract: 1348251 Illuminated advertising device M F MUTZHAS 18 March 1971 44611/70 Heading G5C In an illuminated advertising device, a plurality of letters 1 or indicia each comprises a casing having the shape of the symbol, a fluorescent tube 5 housed in the casing and having a corresponding shape, a transformer 8 in the casing adapted to supply a secondary voltage to the tube 5 and an electrical plug or socket 9, Fig. 2, on each casing. A corresponding electrical socket or plug (not shown) displaceable along a common rail or rails 12 supporting the casings connects the transformer primary to an electricity supply. The casings may be attached to the rails by screws and slotted strips 11 and the transformer to the casing base 6 by a screw 7 which may also adjust the transformer case to regulate the current. Front and side walls 23a and 23b of the casing, Fig. 3, are preferably all transparent plastics but walls 23b may be opaque. Cover 23 may be removable and may be sealed by a strip of rubber (not shown) to prevent moisture penetration. The secondary or transformer 8 may be connected to a constant current device comprising inductors and capacitors, or semi-conductors. The transformer case 8a may have bevelled and silvered walls 8b to aid light reflection.
Patent GB-1353607-A (GB)
Title: Geared hoist
IPC: B66D1/22
Filed: 1970-06-05
Abstract: 1353607 Hoist winches JOSEPH LUCAS (INDUSTRIES) Ltd 3 Sept 1971 [5 June 1970] 27201/70 Heading B8B [Also in Division F2] A hoist comprises a cable drum 11 driven from a shaft 14 through two epicyclic gear trains and a threaded slipping clutch arrangement 19, 26 such that upon driving the shaft 14 in the cable winding in direction, friction plates 29, 31 of the clutch are screwed into interengagement, and upon reversing the shaft 14, the clutch plates are released permitting slipping and allowing the load on the cable to rotate the drum in the cable paying out direction, an overrun clutch 38 tending to re-engage the clutch plates if the drum overruns the shaft 14. The first epicyclic gear train comprises a sun wheel 15 on the drive shaft 14, planet wheels 16 on a carrier 17 integral with the threaded part 19 and a ring gear 18 engageable with the planets and secured to a stationary structure. The second epicyclic gear train comprises a sun gear 27 integral with the threaded part 26, planets 33 on a carrier 34 integral with the drum 11, and a ring gear 35 engageable with the planets and secured to the other ring gear 18. The threaded clutch arrangement comprises friction pads 29 associated with a flange 28 on the threaded part 26 and a sliding flange 23 splined to the threaded part 19, a friction disc 31 compressible between the two pads 29 and secured to a carrier 32, and a spring 37 maintaining a pre-set compression on the clutch components. The overrun clutch 38 between the disc carrier 32 and the planet carrier 34 permits the carrier 32 to run faster than the carrier 34 during winding in operations, but locks the two carriers together when the drum rotates to pay out cable and the friction plates 29, 31 are slipping. Both ends of the drum 11 are sealed so that the drum may contain lubricating oil.
Patent GB-1354291-A (GB)
Title: Article presenting apparatus
IPC: B65B57/00
Filed: 1970-05-07
Abstract: 1354291 Apparatus presenting gramophone records for inspection MASSON SCOTT THRISSELL ENG Ltd 6 May 1971 [7 May 1970] 22163/70 Heading A4T [Also in Division B8] Apparatus presenting gramophone records to inspection devices has two heads 500, 501 Figs. 1, 3 rotatable in 90 degree steps by drive 506, Fig. 3, each with record carriers 502, 503, head 500 rotating below head 501 so that in step position P4 one carrier 502 is directly beneath a carrier 503, the records being fed from a stack one at a time to drop on to the top of a carrier 502 at position P1, the record resting on a disc 507 with an expansible hook device 510 extending through the record centre hole. As the carrier rotates from position P1 to P2, follower 532 moves off cam 533 allowing shaft 508 to slide down in carrier 502 to expand hooks 510 to grip the record. A shaft wheel 513 engages a track 514, Fig. 1 to rotate the record which continues rotating at position P2 by engaging a drive wheel 515 so that it can be inspected for warp and concentricity. The record is then stepped to position P3 where its top surface is inspected. When the record moves to position P4 cam 533 releases the hooks 510, a rotatable cam 516, Fig. 3 engages shaft 517 in head 501 and lowers suction pads 512 on to the record at L1, suction from pump 523 is passed at 522, 521 to the pads, and pistons 520 rise to lift the record to position L2 and as the head 501 rotates the record from P4 to P5, cam 516 allows the record to rise from L2 to L3 whereby its underside is inspected at position P5. When the record moves to position P6, cam 531 lowers shaft 517, a solenoid opens valve 528 to relieve suction and the record drops on to conveyer 527 Fig. 1 and is pushed at 526 into a record sleeve. Should any fault be detected valve 528 is not opened and the record is carried to position P7 where it is dropped into a bin.